OS X: Soulver is an awesome calculator app that lets you write out your math problem with words, list, and other real language to get a real, useful answer without confusing equations.

We've talked about Soulver once before, and it really is a cool way to solve real life math problems that require lists, real units of measurement, and other elements in English that you don't want to forget. It's usually $20, but this weekend it's on sale for 50% off. So, if you've been looking for an easier calculator to help you solve real life problems, now's a good time to check it out (and if you're on Windows, check out OpalCalc for something similar).